Sheet-feed mechanism.



H. 6L A. H. HAYSSEN.

SHEET FEED MECHANISM.

APPLlcATloN man APR. 24, ma.

3 SHEETS-SHEET l- BY @am #Mw/ 711m@ 44W, @04h44.

ATTORNEYS.

. H. @L A. H. HAYSSEN.y

SHEET FEED MECHANISM.

APPLlcAIloN FILED APR. 24, me.

l ,26 l ,808 Patentd Apr. 9, 1918.

3 SHEETS-SHEET 2f.

H. L A. H. HAYSSEN.

SHEETFEED MECHANISM. APPLlcA-TIION FILED APR.24. lele.

Patented Apr. 9 1918.

3 SHEETS-SHEET 3- ATTORNEYS.

HERMAN HAYSSEN' AND ARTHUR H. HAYSSEN', OF SHEBOYGAN, WISCONSIN.

SHEET-FEED MECHAN ISM.

Specification of Letters Patent.

Patented Apr. 9,1918.

Application led April 24, 1916. Serial No. 93,100.

To all lwhom t may concern.'

Be it known that we, HERMAN HAYssEN and ARTHUR H. HAYssEN, citizens of the United States, and residents of Sheboygan, county of Sheboygan, Wisconsin, have invented new and useful Improvements -in Sheet-Feed Mechanism, of which the following is a description, reference being had tothe accompanying drawings, which are a part of this specification. i

The invention relates to sheet feed mechanism.

The invention is designed more particularly to provide mechanism for withdrawing a single small sized sheet of material from a stack of similar sheets and feeding said sheet to the place where it is to be deposited.

Mechanism of this character finds particular application at the present time in connection with bread wrapping machines where a prize coupon is placed in each package of bread before the paper wrapper is sealed up. The present invention is thus more partlcularly designed to separate a single coupon from a stack of similar coupons and carry the coupon bodily to the read feeding table and eposit one coupon on each loaf of bread as it moves through the wrapping machine.

The invention is further designed to provide a new and improved form of self-feed mechanism.

The invention consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In 'the drawings:

Figure 1 is a View of one side of the machine embodying the invention, parts being broken away and parts being shown in section;

Fig. 2'is an end view of the front of the machine;

Fig. 3 is a detail view of one of the coupon holding devices;

Fig. 4 is a plan view of the machine.

The device comprises, in general, supporting means for a stack of sheets or coupons, means for removing a single sheet or couper from said stack and for bodily carryinoI the removed coupon to the place desiref and depositing it, means for controlling the depositing of the coupon, means for loosening the upper coupons of the stack, and means for stopping the feed mechanism.

The supporting means comprises a frame 5 which is adapted to be attached'to a machlne in connection with which the device is adapted to be used, a coupon or sheet supporting table, guide means mounted on the frame, means for feeding the supporting table upwardly within the guide means, and means on the guide means for releasably` holding the uppermost coupons or sheets. The supporting table consists of a plate 6 which is supported on a centrally disposed rod 7 slidably mounted in a bearlng bracket 8 secured to the frame. The guide means mounted on the frame 5 consists of upright posts 9, 10, 11, 12 and 13, the plate 6 being slidably mounted within the partial inclosure formed by these posts and the posts and said plate forming a chute for receiving a pile or stack of coupons. The post 9 is pivotally' mounted at 1ts lower end 14 on the frame and is normally held in upright position by a spring 15. The means on the guide meansfor releasably holding the uppermost. coupon consists of releasable fingers carried by the posts 9 and 10. These fingers consists of leather strips 16 angularly disposed in the upper slotted ends of said posts and secured within the slots by set screws 19. The finger 16 on the posts 9 and 10 are adapted to releasably engage opposite sides of the uppermost coupon in the stack and also hold the other coupons in position upon the plate 6. The means for feeding the supporting table upwardly within the guide means consists of a link 20 pivotally secured at one end to the lower end of the rod 7 and pivotally secured at its other end to the lower end of a link 21 which is pivotally secured at its upper end to a portion of the frame and a spring 22 connected at one end to the link 20 and at the other to the frame. The spring 22 exerts a constant tendency to move the link 20 upwardly and this through the links 20 and 21 will move the rod 7 and plate 6 wardly.

The means for removing a single coupon from the stack and for bodily carrying the removed coupon to the place desired and depositing it comprises a movable arm 23, means for moving said arm upwardly, means for moving said arm away from carried thereby upthe chute or coupon holder, a suction operated coupon-holding inger 24, and suction means for operating said finger.

The movable arm 23 is provided with an adjustable weight 23 and an adjustable joint 25 and is pivotally connected at its rear end 2G to an arm 27 on a bell crank lever 28 journaled on a shaft 29. The means for moving the arm upwardly comprises a grooved roller 30 in whicha portion of the arm rests, said roller being pivotally mounted on a stud shaft 31 carried by a crank 32 which is mounted on one end of a short shaft 33 journaled in a bearing bracket 34, the other end of said shaft carrying a slotted crank 35. to which the upper end 36 of a link 37 is adjustably pivotally connected by a bolt 38 passing through the slot 39, the lower end of said link 37 being pivotally connected to one arm 40 of a bell crank lever 41 which is fulcrumed on the shaft 29, the other arm 42 of said bell crank lever carrying a cam roller 42 in engagelnent with a cam 43 mounted on the drive shaft 44. Resultantly the revolution of the drive shaft 44 will, through the cam 43, and the bell crank lever 41 vertically reciprocate the link 37 which, through the crank 35, shaft 33 and crank 32, will vertically oscillate the roller 30 and consequently thi` arm 23.

The means for moving the arm 23 away from the coupon holder comprises means for operating the bell crank lever 28. This consists of a cam roller 45 carried by the arm 46 of the lever 28 and which engages a Cam 47 on the drive shaft 44. Resultantly, the revolution of the drive shaft 44 will, through the cam 47, roller 45 and bell crank lever 28, reciprocate the arm 23 to move the finger 24 over the coupon holder and away from the same to a place where it is desired to deposit the coupon.

The coupon-holding nger 24 consists of `a suction pad 48 carried by the outer end of the arm 23.

The means for operating said finger consists of a single cylinder pump 49, a pipe connection between the pump and the pad 48 and means for operating the pump. The pump 49 is of usual construction consisting of a closed cylinder 50 secured to the frame and provided with a slidably reciproeating .piston 51 carried by a piston rod 52 provided with an adjustable joint 53 to regulate the stroke thereof by varying the effective working length of the rod 52. The means for operating the pump comprises a bell crank lever 54 fulcrumed on the shaft 29, one arm 55 of which is pivotally connected to the piston rod 52 and the other arm 56 of which is pivotally connected to a crank 57 connected to eccentric straps 58 which are mounted on an eccentric 59 carried by the drive shaft 44. Resultantly, the revolution of the drive shaft will, through the eccylinder and means for automatically operating said valve. The valve consists of a conical valve head G2 adapted to act upon a conical valve seat 63 in a casing 65 in threaded engagement with the cylinder head 61,' a valve stem G0 for carrying the head. and which is slidably yin the nut 68. A coiled spring G7 surrounding the valve stem and interposed between the member 64 and the end of the casing G5l serves tonormally close the valve. The nut G8, which is in threaded engagement with the casing 65 and through which the end of the valve stem 60 projects, serves to regulate the travel of the valve. The means for automatically operating the valve comprises an adjustable set screw 69 carried by an arm 70 connected to the piston rod 52. Resultantly, when the piston 51 and rod 52 have reached the end of the desired suction stroke thc screw 69 strikes the valve stem 60 and moves the valve head G2 inwardly thus establishing communication from the outside with the interior of the cylinder and stopping the suction whereon the coupon carried by the finger drops therefrom onto the place in which it is to be deposited which in the present instance is a loaf of bread (shown in dotted lines) disposed upon a piece of paper in which it is to be wrapped up. Subsequently the wrapping mechanism (not shown) wraps the paper around the loaf with the coupon inclosed therewith.

The means for loosening up the upper coupons of the stack comprises means for blowing a stream of air upon the coupons. This consists of a nozzle 71 connected to the forward end 72 of the pump through a pipe connection 73 so that during the forward stroke of the pump the air in front of the piston 51 is driven through the pipe 73 and out through the nozzle 71 upon the coupons. l

Means are also provided for stopping the operation of the coupon feed and this consists of a stop member 74 pivotally mounted at one end on a shaft 75 mounted on the frame of the machine, said member having an arm 76 which is connected to a hand-operated lever 77, the upper end of said stop member adapted to engage a projection 78 on the crank 35 to prevent rotation of the same and hold the roller 30 and the arm 23 up in inoperative position.

The operation of the device is as follows The operator deposits a stack of coupons in the coupon holder so that the uppermost coupon is disposed directly below the releasabl'e leather fingers and is retained against upward movement thereby. During one revolution of the drive shaft 44 the arm 23 carrying the suction-operated finger 24 moves down'until the finger 24 rests upon the uppermost coupon and the pump which is now starting on its forward stroke creates a suction in the finger causing it to pick up the uppermost coupon, after which the arm is lifted upwardly by the means previously described, the finger lifting the uppermost coupon from engagement with the releasable leather lingers and carrying said coupon upwardly to `a position above the stack after which the arm is moved away from the coupon holder and in the present instance forwardly carrying the coupon to the place where it is desired to be deposited. When the finger has reached the place for depositing the coupon which in the present instance is over a loaf of bread on a table beside the machine, the pulnp has reached the end of its suction stroke and the coupon is automatically released from engagement with the finger 24 through the means previously described and falls upon the loaf and together with it is wrapped up i-n the paper in which the loaf of bread is inclosed. During the forward Vor suction stroke of the pump the blower is also operated to loosen the coupons. After the up- -permost coupon has been deposited the arm and finger Emove back and down to position to take up the next coupon and on the nextrevolution of the drive shaft the operations vvare repeated, the supporting table or plate moving upwardly in the manner previously described to bring the next coupon beneath the releasable fingers.

The invention thus exemplifies a coupon feeding mechanism in which the coupons are removed, one at a time, from a stack and are carried upwardly and away from the stack to a place of deposit.

The invention is not to be restricted, to the details 'of construction herein set forth, it being my intention to claim the same as broadly as will be permitted by the exist'- ing state of the art.

What we claim as our invention is 1. In a sheet feeding mechanism, the combination with a blower for separating the sheets and a movable suction picker for removing the sheets, of a pump cylinder connected at one end to the blower and at the other end to the suction picker, a piston and piston rod, a relief valve in that end of the cylinder connected with the suction picker, 4and means carried by the piston rod for opening said relief valve.

2. In a sheet-feeding mechanism, the combination with a movable Vsuction-picker, of a'suction pump includingr a cylinder, a piston and means including a piston rod for operating the piston, a relief valve in the cylinder, a conduit connecting the picker with the pump cylinder, and means carried by the piston rod for operating'said relief valve to automatically release the sheet from the picker after a predetermined movement thereof.

3. `In a coupon-feed mechanism, the combination of a movable arm, a suction operated finger carried by said arm, a drive shaft, a bell crank lever connected to the arm, a cam on' the drive shaft for moving said lever to move said arm backwardly and forwardly, another cam on the drive shaft, and means operated by said second cam for vertically oscillating said arm.

In testim'ny whereof, we afiiX our signatures.

HERMAN HAYSSEN. ARTHUR H. HAYSSEN. 

